Auctioneer

To offer (assign) a price, to compete, to fight is an auction leader, appointed by the auction organizer, who owns bidding techniques and conducts the auction in the established order. There is no single concept of auctioneer in the legislation of Ukraine(Auctioneer). An auctioneer is a person who manages an auction, or a public sale at which people can bid on items. It's exciting to win the bidding at an auction and hear the auctioneer shout Sold. It's an auctioneer's job to organize the goods for sale at an auction and oversee the bidding, often encouraging bidders to compete with each other to drive the price up. Some auctioneers call out items and prices in a distinctive, rapid, sing-song voice. Auctioneer comes from auction, which has a Latin root: auction, "increasing sale or public sale," from the auger, to increase(Vocabulary.com).

Sources:

Auctioneer. Vocabulary.com. Retrieved from: https://www.vocabulary.com/dictionary/auctioneer